<div ng-controller="FulltankController">
  <form novalidate class="form-group">
    Date: <input class="form-control" type="text" ng-model="ft.date" /><br />
    Cost: <input class="form-control" type="text" ng-model="ft.cost" /><br />
    Quantity: <input class="form-control" type="text" ng-model="ft.quantity" /><br />
    Mileage: <input class="form-control" type="text" ng-model="ft.mileage" /><br />
    <button ng-click="save(ft)">SAVE</button>
  </form>
</div>